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x11window: explicitly resize when the Xwayland scale changes

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With how Xwayland scaling works, KWin assumes the window already uses the
new coordinate system - but that doesn't happen until Xwayland and the client
know about the new size as well.

BUG: 480642
This commit is contained in:
Xaver Hugl 2024-02-01 18:38:31 +01:00
parent 93b9fdd391
commit c2749e3acf
2 changed files with 9 additions and 0 deletions
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8
src/x11window.cpp
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@ -1181,6 +1181,7 @@ bool X11Window::manage(xcb_window_t w, bool isMapped)
} else {
connect(this, &Window::surfaceChanged, this, &X11Window::associate);
}
connect(kwinApp(), &Application::xwaylandScaleChanged, this, &X11Window::handleXwaylandScaleChanged);
break;
case Application::OperationModeX11:
break;
@ -3897,6 +3898,13 @@ void X11Window::sendSyntheticConfigureNotify()
xcb_flush(kwinApp()->x11Connection());
}
void X11Window::handleXwaylandScaleChanged()
{
// while KWin implicitly considers the window already resized when the scale changes,
// this is needed to make Xwayland actually resize it as well
resize(moveResizeGeometry().size());
}
QPointF X11Window::gravityAdjustment(xcb_gravity_t gravity) const
{
qreal dx = 0;

1
src/x11window.h
View file

@ -430,6 +430,7 @@ private:
QWindow *findInternalWindow() const;
void checkOutput();
void associate();
void handleXwaylandScaleChanged();
Xcb::Window m_client;
Xcb::Window m_wrapper;